Crown ether containing polyelectrolyte multilayer membranes for lithium recovery

Manganese(II)-lithium and -sodium inverse crown ether (ICE) complexes.

Extending to transition metals, the class of compounds known as inverse crown ethers, two mixed alkali metal-manganese(II) amide ring compounds with oxo cores have been synthesised and crystallographically characterised, together with an oxo-free alkyl-amido precursor.

Polyelectrolyte Multilayer Capsule: a Review

Polyelectrolyte Adsorption and Multilayer Formation

In this chapter, we review our recent theoretical work on the formation of polyelectrolyte multilayers. The first layer is obtained by polyelectrolyte adsorption on a surface with an opposite charge. The adsorbed polyelectrolyte charge is sufficient to invert the charge of the surface. Each subsequent layer is bound to the previous one by the formation of a polyelectrolyte complex. Using a Deby...

Elasticity of polyelectrolyte multilayer microcapsules.

We present a novel approach to probe elastic properties of polyelectrolyte multilayer microcapsules. The method is based on measurements of the capsule load-deformation curves with the atomic force microscope. The experiment suggests that at low applied load deformations of the capsule shell are elastic. Using elastic theory of membranes we relate force, deformation, elastic moduli, and charact...

Polyelectrolyte Multilayer Microcapsules Containing Fluorescein Isothiocyanate- Concanavalin A/Glycogen Conjugates for Fluorometric Determination of Sugars

Polyelectrolyte multilayer microcapsules were prepared by a layer-by-layer deposition of poly(ethyleneimine) (PEI) or poly(allylamine hydrochloride) (PAH) and poly(styrene sulfonate) (PSS) on a calcium carbonate particle containing fluorescein isothiocyanateconcanavalin A (FITC-Con A)/glycogen conjugates. Fluorescence microscope and scanning electron microscope observations revealed that the mi...